VIS coated Fused Silica double convex lens 

Biconvex Lenses are manufactured with an identical convex surface on both sides of the lens. This kind of lenses has positive focal length and form both real and vitrual images. Specifications: Material : Fused Silica Diameter : 1mm ~ 300mm Focal Legnth Tolerance :+/-1% Diameter Tolerance :+0.0/-0.1mm Thickness Tolerance :+/-0.1mm Surface Quality :40/20 Centration :<3 arc minutes Clear Aperture :>90% Bevel : Protective bevel as needed Coating :Upon your request Realpoo Optics is a professional manufacturer of optics. Optics includes spherical lens, aspherical lens,diffraction grating and flat lens. Spherical lens such as cylindrical lens, ball lens, convex lens etc. Flat lens includes optical window and mirror. Convex lens and cylindrical lens can be offered with AR coating or without coating.